function ajaxFileUpload() {
	// starting setting some animation when the ajax starts and completes
	$("#loading").ajaxStart(function() {
		$(this).show();
	}).ajaxComplete(function() {
		$(this).hide();
	});

	/*
	 * prepareing ajax file upload url: the url of script file handling the
	 * uploaded files fileElementId: the file type of input element id and it
	 * will be the index of $_FILES Array() dataType: it support json, xml
	 * secureuri:use secure protocol success: call back function when the ajax
	 * complete error: callback function when the ajax failed
	 * 
	 */
	$.ajaxFileUpload( {
		url : '/upload',
		secureuri : false,
		fileElementId : 'fileToUpload',
		dataType : 'json',
		success : function(data, status) {
		document.getElementById('tt').style.display="block";
			document.getElementById('tt').src=data
		},
		error : function(data, status, e) {
			alert("aa"+e)
		}
	})
	return false;
}
